“Analog signature analysis”的意思、由来-开放百科全书

词条

Analog signature analysis

释义

Other terms
Typical equipment
References

Analog signature analysis is an electronic component and circuit board troubleshooting technique which applies a current-limited AC sinewave across two points of an electronic component or circuit.

The resulting current/voltage waveform is shown on a signature display using vertical deflection for current and horizontal deflection for voltage. This unique analog signature represents the overall health of the part being analyzed. By comparing the signatures of known good circuit boards to those of suspect boards, faulty nets and components can be quickly identified.

Analog Signature Analysis relies on a change in electrical characteristics to detect problems on a circuit board.

Other terms

ATE diagnostics
Power off nodal impedance test
Power-off testing
Tracker signature analysis
VI testing
VI curves
Voltage-versus-current display
V/I trace test

Typical equipment

FADOS VI-tester^[1]
Flying probe
Octopus
VI interceptor
V/I curve tracer
Voltage/current curve tracer
Huntron Tracker

References

1. ^http://protarge.com/?p=products&id=29

2 : Hardware testing|Nondestructive testing

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